Daily Sunspot Evaluation
Observation Details Tuesday, 20 July 2021
- No
- 19221
- Date
- 2021 / 07 / 20,420
- Time
- 10:05 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 7
- Relative number (R)
- 27
- Lf
- 1
- P0
- 6.06°
- B0
- 4.83°
- L0
- 154.36°
- Observer
- Ergün EGE
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 5 | 26 | 43.5W | 198 | 44.5W | 6.1 | |
| 2 | AX_ – 2 | 24 | 69.1E | 85 | 68.1E | 4.1 |